Elektra Kirigi,
Blade 2 actually did not have a novel produced, however there was a mini trade comic book produced. Believe me, I've looked far and wide for a Blade 2 novel, and it's not to be found.
That being written, if one does exist and you can provide proof, please let me know as I'd LOVE to get my hands on a copy.

Peter David has written a few Marvel comic book novels, such as the two Spider-Man novels (brilliant), Hulk, and Fantastic Four. FF was a bit of a letdown, but his Hulk novel is superb.
There was also Daredevil, Elektra, X-Men, X-Men 2, and The Punisher.
Basically once a comic book movie is in the works, I hunt down the novelisation.
I'm not too sure who would be suitable to write the GR novelisation... Didn't Quesada say Stephen King was doing some work for Marvel though? Oh baby!

Abe.